8 papers
Constraints on Line-of-Sight Acceleration from O1-O4
Labani Roy, Alexander H. Nitz
A compact binary will experience a center-of-mass (CoM) acceleration in the vicinity of a massive third object. The line-of-sight (LOS) component of this acceleration is imprinted…
Las Cumbres Observatory Gravitational-Wave Follow-up in the Third and Fourth Observing Runs: Strengths and Weaknesses of a Rapid Response Galaxy Targeted Strategy
Ido Keinan, Iair Arcavi, D. Andrew Howell +34
We present a summary of gravitational-wave (GW) follow-up using the Las Cumbres Observatory global network of telescopes during the third (O3) and fourth (O4) observing runs of the…
Search for Sub-Solar Mass Binaries in the First Part of LIGO's Fourth Observing Run
Keisi Kacanja, Kanchan Soni, Aleyna Akyüz +1
We report the first results of a sub-solar mass compact binary search using the data from the first part of the fourth observing run (O4a) of the Advanced LIGO detectors. Sub-solar…
Beyond FINDCHIRP: Breaking the memory wall and optimal FFTs for Gravitational-Wave Matched-Filter Searches with Ratio-Filter Dechirping
Alexander H. Nitz, Keisi Kacanja, Kanchan Soni
A primary bottleneck in modern FFT-based matched-filter searches for gravitational waves from compact binary coalescences is not raw processor throughput, but available memory band…
Eccentricity signatures in LIGO-Virgo-KAGRA's BNS and NSBH binaries
Keisi Kacanja, Kanchan Soni, Alexander Harvey Nitz
Measurement of eccentricity in low-mass binary systems through gravitational waves is crucial to distinguish between various formation channels. Detecting eccentricity in these sys…
Potential science with GW250114 -- the loudest binary black hole merger detected to date
Aleyna Akyüz, Alex Correia, Jada Garofalo +7
On January 14, 2025 the LIGO interferometers detected a gravitational wave from the merger of two black holes, GW250114. Using publicly available information, we estimate that the…